On 06/24/2013 03:27 AM, Bruno Wolff III wrote:
On Sun, Jun 23, 2013 at 18:04:55 -0400,
Matthias Clasen <mclasen@xxxxxxxxxx> wrote:
rpm db 82M
I vaguely remember a discussion about dropping this for live images
because it gets rebuilt every boot when needed. My memory is that we
ended up removing this data while building live images, but haven't
looked at it in a long time.
Well you can't create the rpmdb out of nothing on reboot.
There are three different types of data in the rpmdb:
- the main Packages database which holds the package headers
- indexes like Name, Requirename etc which can always be recreated from
the main Packages db
- host-specific __db.* files (BDB internal cache, locks etc) which must
NOT be included in live images, and which get created as needed
The __db.* files hopefully are not included on live images to begin
with. It might be possible to drop the indexes too: current rpm
versions will automatically generate missing indexes on access, but
obviously it needs to run as root for that to work. So if indexes are
dropped, non-root queries would be very broken until root does a query
or runs an explicit 'rpmdb --rebuilddb' (which could be arranged to
happen on boot)
- Panu -
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